def findLables(arr, dindx):
for i in range(len(arr)):
index = arr[i].find(':')
if index > -1:
label = (arr[i][:index].strip())
rval = symTable.symPresentN(label)
if rval == -1:
dindx += 1
symTable.symT(dindx, label, 0, 0, 'L', 'D', '-', '-')
return dindx
return dindx
def findAttr(fname):
fp = open(fname, "r")
fp2 = open("intermediate.txt", "w+")
name = size = ts = flag = mflag = 0
dindx = lindx = -1
ddcnt = dbcnt = cnt = dqcnt = 0
for i in fp:
arr = i.split(" ", 1)
if len(arr) > 1:
m = bool(re.search('.data', arr[1], re.IGNORECASE))
mm = bool(re.search('.bss', arr[1], re.IGNORECASE))
mmm = bool(re.search('.text', arr[1], re.IGNORECASE))
if m == True:
flag = 1
fp2.writelines(i)
continue #skip section .data line
elif mm == True:
flag = -1
fp2.writelines(i)
continue
elif mmm == True:
flag = -2
fp2.writelines(i)
continue
if flag == 1:
if (arr[1][:2]).lower() == 'dd': #check 1st two char
name = arr[0].strip()
size = 4
cnta = arr[1][3:].split(",")
ddcnt += int(len(cnta))
lindx += 1
cnta = litTable.litT(lindx, cnta, 1)
fp2.writelines(name + ' ' + 'dd' + ' ' + cnta + '\n')
dindx += 1
symTable.symT(dindx, name, size, ddcnt, 'S', 'D', ts, cnta)
ts += ddcnt * int(size)
ddcnt = 0
elif (arr[1][:2]).lower() == 'db':
name = arr[0].strip()
size = 1
arr1 = arr[1][3:]
for k in range(len(arr1)):
if arr1[k] == '"' or arr1[k] == "'":
cnt += 1
elif cnt == 1 and arr1[k] != '\n\t':
dbcnt += 1
elif cnt == 2 or cnt == 0:
if arr1[k] != ',' and arr1[k] != '1' and arr1[
k] != '\n':
dbcnt += 1
#if k>0:
# dbcnt+=1
lindx += 1
arr1 = litTable.litT(lindx, arr1, -1)
fp2.writelines(name + ' ' + 'db' + ' ' + arr1 + '\n')
dindx += 1
#symTable.symT(dindx,name,size,dbcnt,'S','D',ts,arr1[:len(arr1)-1]) #remove last \n
symTable.symT(dindx, name, size, dbcnt, 'S', 'D', ts, arr1)
ts += dbcnt * int(size)
dbcnt = cnt = 0
elif (arr[1][:2]).lower() == 'dq':
name = arr[0].strip()
size = 8
cnta = arr[1][3:].split(",")
dqcnt += int(len(cnta))
lindx += 1
cnta = litTable.litT(lindx, cnta, 1)
fp2.writelines(name + ' ' + 'dq' + ' ' + cnta + '\n')
dindx += 1
symTable.symT(dindx, name, size, dqcnt, 'S', 'D', ts, cnta)
ts += dqcnt * int(size)
elif flag == -1:
if (arr[1][:4]).lower() == 'resd':
name = arr[0].strip()
size = 4
tsize = arr[1][5:].strip()
fp2.writelines(i)
dindx += 1
symTable.symT(dindx, name, size, tsize, 'S', 'D', ts, '-')
ts += int(tsize) * int(size)
elif (arr[1][:4]).lower() == 'resq':
name = arr[0].strip()
size = 8
tsize = arr[1][5:].strip()
fp2.writelines(i)
dindx += 1
symTable.symT(dindx, name, size, tsize, 'S', 'D', ts, '-')
ts += int(tsize) * int(size)
if len(arr) == 1:
mflag = -1
if mflag == 0 and flag == -2:
fp2.writelines(i)
if mflag == -1:
dindx = findLables(arr, dindx)
dindx, lindx = regTable.regT(arr, dindx, lindx)
#symTable.printSymT()
#litTable.printLitT()
fp.close()
fp2.close()
lstFile.lstF("intermediate.txt")
def regT(instrn, dindx, lindx):
fp = open("intermediate.txt", "a+")
flag = valflag = 0
i = len(instrn)
if i > 1:
m = bool(re.search('printf', instrn[1].strip(), re.IGNORECASE))
mm = bool(re.search('puts', instrn[1].strip(), re.IGNORECASE))
if m == True or mm == True:
str1 = instrn[0] + ' ' + instrn[1]
fp.writelines(str1)
for key in reg:
val = instrn[1].__contains__(key)
if val == True:
valflag = 1
str1 = ""
str1 += instrn[0].strip() + ' '
chk = instrn[1].strip().split(",")
for j in range(len(chk)):
fst = chk[j].find('[')
dword = chk[j][:fst + 1]
if j == 0:
if key == chk[j].strip():
str1 += reg.get(key)
elif chk[j].__contains__(key) and fst > -1:
str1 += dword + reg.get(key) + ']'
else:
indx = ""
indx = symTable.checkSym(chk[j].strip())
if indx != chk[j].strip() and fst == -1:
str1 += indx + '\n'
elif indx != chk[j].strip() and fst > -1:
str1 += dword + indx + ']'
else:
for r, v in reg.items():
if r == chk[j].strip():
str1 += v
break
if (len(chk) == 1):
fp.write(str1 + '\n')
elif j > 0:
for r in reg:
if r == chk[j].strip():
if fst == -1:
str1 += ',' + reg.get(r) + '\n'
elif fst > -1:
str1 += ',' + reg.get(r) + ']\n'
flag = 1
break
elif chk[j].__contains__(key) and fst > -1:
str1 += dword + reg.get(key) + ']\n'
flag = 1
break
else:
flag = 0
if flag == 0:
indx = ""
indx = symTable.checkSym(chk[j].strip())
if indx != chk[j].strip():
if fst == -1:
str1 += ',' + dword + indx + '\n'
elif fst > -1:
str1 += ',' + dword + indx + ']\n'
else:
indx = litTable.checkLit([chk[j].strip()])
if indx == -1:
lindx += 1
indx = litTable.litT(
lindx, [chk[j].strip()], 1)
str1 += ',' + indx + '\n'
fp.writelines(str1)
break
if valflag == 0:
indx = str1 = ""
indx = symTable.checkSym(instrn[1].strip())
if indx != (instrn[1].strip()):
str1 = instrn[0].strip() + ' ' + indx + '\n'
fp.writelines(str1)
else:
if instrn[0].strip() == 'jz' or instrn[0].strip(
) == 'jmp' or instrn[0].strip() == 'je' or instrn[0].strip(
) == 'jne':
dindx += 1
symTable.symT(dindx, instrn[1].strip(), 0, 0, 'L', 'U',
'-', '-')
indx = symTable.checkSym(instrn[1].strip())
if indx != (instrn[1].strip()):
str1 = instrn[0].strip() + ' ' + indx + '\n'
fp.writelines(str1)
else:
str1 = ""
if instrn[0] != '\n':
str1 += instrn[0]
fp.write(str1)
fp.close()
return dindx, lindx